An interactive toy having a toy body is provided. An oxygen-doped silicon carbide etch stop layer is formed over the substrate. The system includes a service device for providing service contents according to the control of a control device. In which, at the air passage position, the vent blades are rotated to open the ventilating slot respectively for allowing the airflow passing therethrough, and at the air blockage position, the vent blades are rotated to close the ventilating slot respectively for blocking the airflow passing through. The particular user may view a display of other users who have been employed by the particular entities that serve as a filter. When an item is selected, a menu may be displayed to allow a user to receive more information about the item.